Lesson 65 of 84 ยท Organisms
Experimentโญ 30 XPWhat Do Plants Need to Grow? (Part 2)
Organisms.
๐ฏ Your mission
Set it up. Test it. Be amazed.
โก The twist
Nature loves to surprise the careful watcher.
Mind = Blown
๐ฌ The more you look, the more nature shows you.
Make a hypothesis first
Before you start: write down what you think will happen, and why.
What You'll Learn
Plants need sunlight, water, carbon dioxide, and nutrients from soil to grow. Their roots absorb water and minerals while their leaves capture sunlight for photosynthesis.
Key Words
- invertebrate
- species
Materials Needed
- labels
- seeds
- soil
- cups
- water
- plastic wrap
Safety First
- Clean up spills immediately to prevent slipping.
- Use materials only as directed in the experiment.
- Keep small objects away from young children.
Steps
Review the background information on Organisms before starting.
Model natural selection: scatter colored paper scraps on grass. Time how long it takes a partner to pick up each color. Which color survived longest? Why?
Use your senses (except taste) to describe what you notice.
Write a summary of your findings in 3-5 sentences.
Check Your Understanding
Question 1
1 of 3What type of consumer eats only plants?
Where you see this in real life
This shows up in your everyday life more than you'd think.
Stretch Challenge
Try this in real life this week.
Try one experiment in real life this week โ even a tiny one.
For the dinner table
โWhat's the most surprising thing you learned today?โ
Next Smart Experiment
We'll pick an experiment that matches exactly how you're thinking right now.
Share this experiment
Send it to a parent who's looking for a 10-minute kitchen science win.
Checkout complete lesson on Organisms for 4th Grade
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